export type RegionSource = "hunk" | "untracked" | "listed";
export interface ChangedRange {
    readonly start: number;
    readonly end: number;
    readonly source: RegionSource;
}
export declare class ChangedRegions {
    private readonly rangesByFile;
    addRange(file: string, start: number, end: number, source: RegionSource): void;
    addWholeFile(file: string, source: RegionSource): void;
    intersectsLocation(file: string, startLine: number, endLine: number): boolean;
    entries(): Array<{
        file: string;
        ranges: readonly ChangedRange[];
    }>;
    describe(): string;
}
export declare function canonicalPath(root: string, filePath: string): string;
export declare function parseUnifiedDiff(diffText: string): ChangedRegions;